MCQ
The $C - H$ bond length is minimum in the bond formed by
- ✓$sp - s$ overlapping (as in alkynes)
- B$s{p^2} - s$ overlapping (as in alkenes)
- C$s{p^3} - s$ overlapping (as in alkanes)
- DNone of these
✓
Answer
Correct option: A.
$sp - s$ overlapping (as in alkynes)
a
Here the answer is option $A \,sp - s$ overlapping(as in alkynes)
Here the answer is option $A \,sp - s$ overlapping(as in alkynes)
Bond length decreases with the increase in $s$ character since an $s$-orbital is smaller than a $p$ - orbital.
| Compound | Hybridization | $C$ - $H$ bond length $\mathring A)$ |
| Alkane | $sp ^3$ | $1.093$ |
| Alkene | $sp ^2$ | $1.087$ |
| Alkyne | $s p$ | $1.057$ |
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